Reagent tube



FIG. 1 is a top perspective view of a reagent tube;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a side view thereof;

FIG. 4 is another side view thereof;

FIG. 5 is a further side view thereof;

FIG. 6 is an additional side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

CLAIM The ornamental design for a reagent tube, as shown and described.